Stream blob data in chunks to files to not occupy too much memory

[adzialocha]

Establishes a stream from reading binary blob data from the database (via pagination) into writing the file on the file system. This allows for (parallely) handling very large blobs without occupying too much of memory.

Closes: https://github.com/p2panda/aquadoggo/issues/548

📋 Checklist

• [x] Add tests that cover your changes
• [x] Add this PR to the Unreleased section in CHANGELOG.md
• [x] Link this PR to any issues it closes
• [x] New files contain a SPDX license header

[codecov[bot]]

Codecov Report

Patch coverage: 91.28% and project coverage change: +0.04% :tada:

Comparison is base (a404d0c) 92.50% compared to head (77df667) 92.54%. Report is 3 commits behind head on development.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## development #551 +/- ## =============================================== + Coverage 92.50% 92.54% +0.04% =============================================== Files 105 105 Lines 17932 17988 +56 =============================================== + Hits 16588 16647 +59 + Misses 1344 1341 -3 ``` | [Files Changed](https://app.codecov.io/gh/p2panda/aquadoggo/pull/551?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=p2panda) | Coverage Δ | | |---|---|---| | [aquadoggo/src/db/stores/entry.rs](https://app.codecov.io/gh/p2panda/aquadoggo/pull/551?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=p2panda#diff-YXF1YWRvZ2dvL3NyYy9kYi9zdG9yZXMvZW50cnkucnM=) | `99.40% <ø> (ø)` | | | [aquadoggo/src/db/stores/operation.rs](https://app.codecov.io/gh/p2panda/aquadoggo/pull/551?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=p2panda#diff-YXF1YWRvZ2dvL3NyYy9kYi9zdG9yZXMvb3BlcmF0aW9uLnJz) | `89.63% <ø> (ø)` | | | [aquadoggo/src/db/stores/schema.rs](https://app.codecov.io/gh/p2panda/aquadoggo/pull/551?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=p2panda#diff-YXF1YWRvZ2dvL3NyYy9kYi9zdG9yZXMvc2NoZW1hLnJz) | `98.37% <ø> (ø)` | | | [aquadoggo/src/db/types/entry.rs](https://app.codecov.io/gh/p2panda/aquadoggo/pull/551?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=p2panda#diff-YXF1YWRvZ2dvL3NyYy9kYi90eXBlcy9lbnRyeS5ycw==) | `90.00% <ø> (ø)` | | | [aquadoggo/src/db/types/operation.rs](https://app.codecov.io/gh/p2panda/aquadoggo/pull/551?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=p2panda#diff-YXF1YWRvZ2dvL3NyYy9kYi90eXBlcy9vcGVyYXRpb24ucnM=) | `88.00% <ø> (ø)` | | | [aquadoggo/src/graphql/queries/collection.rs](https://app.codecov.io/gh/p2panda/aquadoggo/pull/551?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=p2panda#diff-YXF1YWRvZ2dvL3NyYy9ncmFwaHFsL3F1ZXJpZXMvY29sbGVjdGlvbi5ycw==) | `99.60% <ø> (ø)` | | | [...ggo/src/graphql/scalars/document\_view\_id\_scalar.rs](https://app.codecov.io/gh/p2panda/aquadoggo/pull/551?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=p2panda#diff-YXF1YWRvZ2dvL3NyYy9ncmFwaHFsL3NjYWxhcnMvZG9jdW1lbnRfdmlld19pZF9zY2FsYXIucnM=) | `78.57% <ø> (ø)` | | | [aquadoggo/src/materializer/tasks/dependency.rs](https://app.codecov.io/gh/p2panda/aquadoggo/pull/551?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=p2panda#diff-YXF1YWRvZ2dvL3NyYy9tYXRlcmlhbGl6ZXIvdGFza3MvZGVwZW5kZW5jeS5ycw==) | `97.56% <ø> (ø)` | | | [...doggo/src/materializer/tasks/garbage\_collection.rs](https://app.codecov.io/gh/p2panda/aquadoggo/pull/551?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=p2panda#diff-YXF1YWRvZ2dvL3NyYy9tYXRlcmlhbGl6ZXIvdGFza3MvZ2FyYmFnZV9jb2xsZWN0aW9uLnJz) | `98.59% <ø> (ø)` | | | [aquadoggo/src/network/service.rs](https://app.codecov.io/gh/p2panda/aquadoggo/pull/551?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=p2panda#diff-YXF1YWRvZ2dvL3NyYy9uZXR3b3JrL3NlcnZpY2UucnM=) | `30.03% <ø> (ø)` | | | ... and [18 more](https://app.codecov.io/gh/p2panda/aquadoggo/pull/551?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=p2panda) | |

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.